Using Ubuntu 16.04, nVidia driver 364.19, Linux kernel 4.6.0. I have a P65_P67RGRERA and have been experiencing the same problems:
1. If I go in to the BIOS and set the graphics mode to "DISCRETE", then everything works. 2. If I go in to the BIOS and set the graphics mode to "MSHYBRID", then the nVidia card stays powered on. If I turn off the nVidia card, then certain commands will cause the kernel to freeze (such as lspci and lshw). How I'm turning off the nVidia card: rmmod nvidia_drm nvidia_modeset nvidia_uvm nvidia tee /proc/acpi/bbswitch <<<OFF Eggie: when you're in Intel graphics mode, what's your power consumption? Are you sure the nVidia card is turned off? What do you get in IGP mode when you run: cat /proc/acpi/bbswitch ? At first I thought the issue was resolved for me, but after installing and running powerstat, I noticed power consumption was the same in both IGP and DGP modes (around 27 Watts when idle). After running the above command, I found that the nVidia GPU was still powered on in IGP mode. After a lot of digging around, I managed to turn it off using: rmmod nvidia_drm nvidia_modeset nvidia_uvm nvidia tee /proc/acpi/bbswitch <<<OFF Idle power consumption then halved (to around 13 Watts), but then certain commands cause the laptop to instantly freeze (such as lshw or lspci). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1569383 Title: Intel HD Graphics 530 crashes on glxinfo in MSHYBRID mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1569383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
